US3243409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon-containing polyoxymethylenes and method for preparing
Assignee: Monsanto Co
•
Filing: 1962-09-10
•
Granted: 1966-03-29
•
Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Walter A Kornicker
- 👤 Maier Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:52
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/18; C08G2/30; C08G2/38; C08G77/00; C08G77/42; C08G77/46
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
A PROCESS OF PREPARING SILICON-CONTAINING POLYOXYMETHYLENE POLYMER HAVING SELECTED FROM THE CLASS CONSISTING OF UNIS OF THE FOLLOWING STRUCTURES
Claim 2
Dependent Claim
19 words
A PROCESS OF PREPARING SILICON-CONTAINING POLYOXYMETHYLENE POLYMER HAVING SELECTED FROM THE CLASS CONSISTING OF UNIS OF THE FOLLOWING STRUCTURES
Claim 3
Dependent Claim
17 words
A SILICON CONTAINING POLYOXYMETHYLENE POLYMER HAVING SELECTED FROM THE CLASS CONSISTING OF UNITS OF THE FOLLOWING STRUCTURES
Claim 4
Dependent Claim
17 words
A SILICON CONTAINING POLYOXYMETHYLENE POLYMER HAVING SELECTED FROM THE CLASS CONSISTING OF UNITS OF THE FOLLOWING STRUCTURES
References Cited (Backward Citations)
US2386793A
Cited
US2842522A
Cited
US2993871A
Cited
US3078293A
Cited
US3109854A
Cited
US3081269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |